prepolymer


Also found in: Acronyms.

prepolymer

[prē′päl·i·mər]
(organic chemistry)
A reactive low-molecular-weight macromolecule or an oligomer, capable of further polymerization.
References in periodicals archive ?
VORAMER MN 2314 Prepolymer is a highly-processable, cost-effective polyurethane solution for formulating concrete adhesives and sealants.
2) was a complimentary supply from SABIC-IP and was made by melt polycondensation with the same catalyst content used to prepare the prepolymer.
With the right combination of urethane building blocks, and the unique structure of hard segments generated from the low free (LF) monomer prepolymer, the resulting thermoplastic urethanes have reached a higher performance level.
Huntsman Polyurethanes says it is aiming Suprasec 2154 prepolymer at applications where passive fire prevention is required, for example in coating concrete and steel structures in multi-storey car parks.
Prepolymers in the backbone of the sealants provide most of the sealant's properties.
One study reported that almost complete fixation of compressed wood can be achieved by steaming with a urea-formaldehyde (UF) prepolymer (Ito et al.
The prepolymer was synthesized via a three-step procedure in a 250 mL four-necked, round-bottomed flask equipped with a mechanical stirrer, a thermometer, a dropping funnel, an inlet of dry nitrogen, and a reflux condenser with a drying tube.
MOCA (4,4'-methylene-bis-(ortho-chloroaniline) polyurethane resin curing agent for reaction with prepolymer products of TDI (toluene di-isocyanate).
An MDI finishing plant and a prepolymers plant built by Huntsman and Shanghai Chlor-Alkali Chemical Co.
They settled upon Adiprene urethane prepolymer from UniRoyal Chemical, Middlebury, CT.
Investment in additional Adiprene(R) / Vibrathane(R) polyurethane prepolymer production capacity at Chemtura's Latina Scala, Italy, manufacturing facility.
US Patent 8,741,977 (June 3,2014), "Foam Compositions and Articles including Cyclodextrin Crosslinked with Polyurethane Prepolymer and Preparation thereof," Anne Marie Paule Wibaux and Bert Paesen (Avery Dennison Corp.